Cant activate blocks while holding an item, or shifting with an empty hand

If I'm holding an item in my hand while I click chest, door, lever, etc. It wont do anything. Same while holding a shield in my off-hand, instead of activating the block I just use the shield. If I'm holding an item not a block, like a slimeball, it will open the chest, but the chest will stay open until I reload the world, same thing goes with the Shulker Box. If I'm pressing shift, but not holding anything it still wont do anything. I could go on forever saying everything that is annoying with this bug, but I wont, all I want is for this to be fixed ASAP especially because I play on a server called MCDiamondFire which requires a lot of clicking signs and opening chests.

EDIT:
Nevermind, just figured out it was a problem with forge.